Publications
USGS Northern Prairie Wildlife Research Center staff publish results of their research in USGS series reports and in peer-reviewed journals. Publication links are below. Information on all USGS publications can be found at the USGS Publications Warehouse.
Filter Total Items: 1930
Pintail reproduction hampered by snowfall and agriculture Pintail reproduction hampered by snowfall and agriculture
Abstract has not been submitted
Authors
Gary L. Krapu
Use of natural basin wetlands by breeding waterfowl in North Dakota Use of natural basin wetlands by breeding waterfowl in North Dakota
Use of basin wetlands by breeding populations of 12 species of waterfowl was investigated in 1965 and during 1967-69 throughout the prairie pothole region of North Dakota. Data were obtained primarily by random sampling techniques. Of the total population occupying natural basin wetlands 55 percent occupied seasonal and 36 percent occupied semipermanent wetlands. Seasonal wetlands...
Authors
H.A. Kantrud, R. E. Stewart
Impact of red fox predation on the sex ratio of prairie mallards Impact of red fox predation on the sex ratio of prairie mallards
No abstract available.
Authors
Douglas H. Johnson, Alan B. Sargeant
Analysis and machine mapping of the distribution of band recoveries. Analysis and machine mapping of the distribution of band recoveries.
No abstract available.
Authors
Lewis M. Cowardin
Weather influences on nocturnal bird mortality at a North Dakota tower Weather influences on nocturnal bird mortality at a North Dakota tower
Abstract has not been submitted
Authors
M.L. Avery, P. F. Springer, J.F. Cassel
Report of the American Ornithologists' Union Committee on Conservation, 1976-77. The recovery team-recovery plan approach to conservation of endangered species; A status summary and appraisal Report of the American Ornithologists' Union Committee on Conservation, 1976-77. The recovery team-recovery plan approach to conservation of endangered species; A status summary and appraisal
The U.S. Endangered Species Act of 1973 (P.L. 93-205) identifies the U.S. Fish and Wildlife Service (USFWS), under authority delegated by the Secretary of the Interior, as the lead agency charged with the conservation of most endangered species in the United States. Some marine species are the responsibility of the Secretary of Commerce, and the responsibility for marine turtles is...
Authors
W.B. King, J.A. Jackson, H.W. Kale, H.F. Mayfield, R.L. Plunkett, J. M. Scott, P. F. Springer, S.A. Temple, S.R. Wilbur
Foods of juvenile, brood hen, and post-breeding pintails in North Dakota Foods of juvenile, brood hen, and post-breeding pintails in North Dakota
No abstract available.
Authors
Gary L. Krapu, G.A. Swanson
Breeding bird census - coastal sand dunes Breeding bird census - coastal sand dunes
Abstract has not been submitted
Authors
P.C. Sorensen, P. F. Springer
A hematologic survey of captive waterfowl A hematologic survey of captive waterfowl
Hematologic parameters were studied in giant Canada geese (Branta canadensis maxima), mallard ducks (Anas platyrhynchos platyrhynchos) and various species of diving ducks at seasonal intervals throughout the year. Highest values for packed cell volume, hemoglobin content and erythrocyte counts were found in the winter and pre-nesting periods. Mean corpuscular volume and mean corpuscular...
Authors
H.J. Shave
Eyes in the sky for wildlife Eyes in the sky for wildlife
Abstract has not been submitted
Authors
D.S. Gilmer, E.A. Work
Plasma luteinizing hormone and the development of ovarian follicles after loss of clutch in female mallards (Anas platyrhynchos) Plasma luteinizing hormone and the development of ovarian follicles after loss of clutch in female mallards (Anas platyrhynchos)
The plasma level of LH and the extent of development of ovarian follicles were analyzed in incubating female Mallards. In both wild and game-farm stock, incubation was associated with a significant decline in plasma levels of LH from those of laying females. Within 1 day after removal of eggs, LH levels had increased to levels indistinguishable from those of laying females. The mean...
Authors
R.S. Donham, C.W. Dane, D. S. Farner
Restoration of the giant Canada goose in North Dakota Restoration of the giant Canada goose in North Dakota
Abstract has not been submitted
Authors
F.B. Lee, L.J. Schoonover, J.A. Cooper, M. Johnson